Filtering and straining rack.



R. L. GRIFFIN.

FILTEBING AND'STRAINING RACK. APPLICATION mm APR- n. 1911.

Patented July 10, 1917.

INVENTOR s E s s E N ATTORNEY l l l .11:

FILTEJRING AND STRAINING RACK.

Specification of Letters Patent.

Patented July lull, 191W.

Application filed April 17, 1917. Serial No. 162,628.

To all whom it may concern:

Be it known that I, RICHARD L. GRIFFIN, a citizen of the United States, residing at Jacksonville, in the county of Duval and State of Florida, have invented new and useful Improvements in Filtering and Straining Racks, of which the following is a specification.

This invention is an im roved filtering and straining rack especia 1y adapted for use by druggists on the prescription counter for filtering or straining'medicines or the like, and for other analogous uses, the object of the invention being to provide an improved device of this character which is simple in construction and in which the member which carries the straining or filtering means may be adjusted vertically and hence caused to bear on the upper side of vessels of various heights in which the filtered substance is to be received.

The invention consists in the construction, combination and arrangement of devices hereinafter described and claimed.

In the accompanying drawings Figure 1 is a perspective view of a filtering and straining rack constructed and arranged in accordance with my invention.

Fig. 2 is a transverse sectional View of the same.

In the embodiment of my invention I pro vide a base 1 which may be arranged on a counter or other support and may be secured in place by screws or the like which pass through openings 2 near the corners of the base. The base is provided with a pair of vertical standard rods 3 which are arranged near its ends and at a point midway between its sides.

A member 4 which is here shown as a shelf is provided near its ends with'vertical openings through which the standard rods extend, so that said member may be adjusted vertically and said member is provided with set screws 5 or other suitable devices to engage the standard rods and secure said member in any desired vertical adjustment.

The member 4 is'provided with a central circular opening in which an inverted frusto-coiiical ring 6 is fitted, said ring having an out-turned flange 7 at its upper side which bears on said member. An inner ring 8 of similar form is adapted to be fitted closely in the outer ring and to clamp a gauze or other suitable straining or filtering fabric 9 between said rings and cause the said fabric to coact with said rings to form a straining or filtering cup, the bottom of which is formed by the fabric. By first removing the inner ring the fabric may be readily removed, as will be understood.

The fabric is arranged in a roll 10 the axle 11 of which is mounted in vertical bearing slots 12 in the vertical arms 13 of brackets 14 which are secured to the bottom of the member 4 and extend from the front side thereof. Hence the roll of filtering or straining fabric is also mounted on the vertically adjustable member which carries the filtering or straining cup and the roll together with the filtering or straining cup may be raised or lowered by correspondingly moving said member 4; as will be understood.

While my improved filtering and straining rack is especially adapted for use by druggists it is also adapted for other analogous uses and the same may be made of any suitable size and constructed of any suitable material.

While I have herein shown and described a preferred form of my invention I would have it understood that changes may be made in the form, proportion and construction of the several parts, without departing from the spirit of my invention and within the scope of the appended claim.

Having thus described my invention, I claim In a device of the class described, a supporting member having an opening, a filtering or straining cup in said opening, a roll of filtering or straining fabric to form a bottom for said cup, an axle member for said roll and brackets having bearings for said axle member, said brackets being attached to-and carried by said supporting member.

In testimony whereof I aflix my signature.

RICHARD L. GRIFFIN. 

